Answered on Quora.
After the arrest of Picard, there has been an LSD shortage in the US.
Nevertheless, it is still made in the US. Most LSD in the US at the moment is being made in small labs in Southern or South Central California. They make batches every 3–5 years. In Canada, most LSD is presently being made in Southern Ontario.
The available LSD has been of very poor quality since the 1990’s. However, with the advent of the Dark Web, LSD has undergone a renaissance. There is one site in particular on the Dark Web that sells a lot of LSD. In addition, there are people on the Dark Web who test and review various batches of LSD. The result has been a lot of competition, increasing demand, and slowly increasing quality.
The days when pure white crystalline LSD was available are long gone.